WO2003043259A1 - Method and device for retransmission of transmitted units - Google Patents
Method and device for retransmission of transmitted units Download PDFInfo
- Publication number
- WO2003043259A1 WO2003043259A1 PCT/EP2001/013063 EP0113063W WO03043259A1 WO 2003043259 A1 WO2003043259 A1 WO 2003043259A1 EP 0113063 W EP0113063 W EP 0113063W WO 03043259 A1 WO03043259 A1 WO 03043259A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- fragmentation
- transmission unit
- unit
- fsn
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1809—Selective-repeat protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1642—Formats specially adapted for sequence numbers
Definitions
- the invention relates to a method for retransmitting a transmission unit via an air interface in a wireless access system employing fragmentation for transmissions.
- the transmission capacity on the air interface is assumed to be variable in this system and a transmission unit that is to be retransmitted was transmitted a first time together with fragmentation information.
- the invention equally relates to a transmitting unit for such a wireless access system and to a corresponding wireless access system.
- a wireless access system employing fragmentation and an adaptive modulation for transmitting signals is specified e.g. in the IEEE draft P802.16/D5-2001 : "Local and Metropolitan Area Networks - Part 16: Standard Air Interface for Fixed Broadband Wireless Access Systems", which is incorporated by reference herein.
- the standard specifies the air interface, including the medium access control layer (MAC) and a physical layer (PHY) , of fixed point-to-multipoint broadband wireless access systems providing multiple services.
- MAC SDUs service data units
- MAC PDUs program data units
- the defined system operates at frequencies of 10-66 GHz.
- ARQ Automatic Repeat Request
- a receiving unit may request a retransmission of transmission units that were for instance lost during transmission over the air interface by transmitting an ARQ feedback to the transmitting unit.
- the proposed algorithm for repeating a transmission is a selective repeat algorithm, i.e. only those fragments are retransmitted which are not received satisfactorily at the receiving unit after the first transmission.
- a selective repeat ARQ mechanism will often require a packet reordering.
- Variations of the environmental conditions on the transmission path are compensated in a system according to the 802.16a standard with a variation of the modulation and with a forward error correction (FEC) .
- the transmission capacity of the radio link can thus vary significantly between the time of a first transmission and the time of a retransmission.
- FEC forward error correction
- the conventional method of sequence numbering employed for a single fragmentation is not suited for handling such a refragmentation.
- the currently proposed solution for refragmentation in the 802.16a system mandates that the MAC SDUs are chopped into fixed sized ARQ blocks.
- Each ARQ block is identified by an ARQ block number assigned to it by the MAC.
- a set of ARQ blocks that are to be transmitted or retransmitted are included in a MAC PDU.
- the block number of the first block is carried in a subheader in each MAC PDU, or in each packing element in case a MAC PDU carries packed MAC SDUs or MAC SDU fragments.
- the MAC level fragmentation function is restricted to fragment MAC SDUs on ARQ block boundaries .
- the restriction put on the fragmentation protocol in the current proposal is incompatible with the fragmentation procedure specified in the 802.16 standard, since it does not allow a variable fragmentation.
- the block numbering scheme also limits the possibilities of using implementations designed for a 802.16 system also for 802.16a systems.
- the objects of the invention are reached with a method for retransmitting a transmission unit via an air interface in a wireless access system employing fragmentation for transmissions.
- the available transmission capacity on the air interface is variable, and the transmission unit is transmitted a first time together with fragmentation information. It is proposed that the transmission unit is retransmitted after a refragmentation with information on this refragmentation and with at least some of said fragmentation information that was transmitted before with said transmission unit in said first transmission.
- the objects of the invention are equally reached with a transmitting unit for a wireless access system which transmitting unit comprises means for realizing the proposed method.
- a wireless access system comprising such a transmitting unit and a receiving unit for receiving transmitted transmission units and for requesting a retransmission of a transmission unit if necessary.
- the invention proceeds from the idea that in case a transmission unit which has to be retransmitted comprises on the one hand fragmentation information of the original transmission unit and on the other hand fragmentation information describing the fragmentation employed for retransmission, an easy refragmentation mechanism is enabled which allows to rebuild and reorder the fragments as required for a retransmission.
- the fragments of a transmission unit resulting in refragmentation can be assigned their own fragmentation information as any transmission unit which is transmitted for the first time.
- each transmission unit that is to be retransmitted is refragmented into new fragments. For example, if the available transmission capacity is the same for a first transmission and for a repeated transmissions of a transmission unit, the transmission unit may be transmitted again without the necessity for a different fragmentation than before.
- the transmitting unit is advantageously part of a first transceiver device. Accordingly, the transmitting unit advantageously transmits the transmission units to a receiving unit which is part of a second transceiver device.
- a retransmission of a transmission unit is carried out upon request by a receiving unit, e.g. because the receiving unit notes that a transmission unit is missing or that a transmission unit was received with too many errors.
- the request for a retransmission can be for example the selective ARQ mechanism proposed in the above mentioned amendment 802.16a.
- the transmission unit of the invention can be in particular a MAC SDU transmitted in a MAC PDU without packing, a MAC SDU fragment transmitted in a MAC PDU without packing, a MAC SDU transmitted in a MAC PDU with packing, or a MAC SDU fragment transmitted in a MAC PDU with packing.
- fragmentation information is included in a subheader of each fragment that is to be transmitted.
- this subheader has preferably an ARQ subheader format that consists of the fragmentation or packing subheader defined in this standard and of an additional part.
- the additional part may comprise for example a field extending the fragmentation sequence number (FSN) field present in the 802.16 Fragmentation Subheader and Packing Subheader, an FSN' field replicating the FSN field of the respective first transmission unit, an FC field replicating the fragmentation control (FC) field in the respective first transmission unit, and a transmission unit sequence number TSN field.
- FSN fragmentation sequence number
- FC fragmentation control
- the fields employed for a fragmentation control FC, FC preferably comprise 2 bits.
- the values assigned to the fragmentation control fields FC and FC may correspond for example to the values defined in the above mentioned IEEE standard 802.16. In this standard, a value of 00 is used for transmission units that are not fragmented, a value of 01 for a respective last fragment, a value of 10 for a respective first fragment, and a value of 11 for each middle fragment.
- the fields employed for a fragmentation sequence number FSN, FSN' preferably comprise 5 bits.
- the fields for the transmission sequence number TSN preferably comprise 7 bits.
- the lengths of the fields and the codings in the fragmentation control fields can be selected differently. However, these lengths and codings ensure that the method and the system according to the invention comply with the definitions of the IEEE standard 802.16.
- the invention can be employed in particular, though not exclusively, in wireless local area networks (LAN) or metropolitan area networks (MAN) .
- LAN local area networks
- MAN metropolitan area networks
- the invention is moreover applicable for example in point-to-multipoint wireless broadband access networks and in point-to-point wireless broadband access networks, but equally in other system.
- the invention can further be employed in particular, though not exclusively, in systems in which the transmission capacity may change due to an adaptive modulation which is applied to signals that are to be transmitted.
- Fig. 1 illustrates an embodiment of the method of the invention in a first situation
- Fig. 2 illustrates an embodiment of the method of the invention in a second situation.
- Figure 1 and figure 2 illustrate transmissions and retransmissions of transmitting units in a broadband wireless access system according to the invention.
- the wireless access system employs fragmentation and an adaptive modulation for transmissions from a base station of a network of the system to a subscriber station of the system.
- Figure 1 depicts in a first row two MAC SDUs #1 and #2 which are to be transmitted by a base station via the air interface to a subscriber station. Both MAC SDUs are fragmented for a first transmission into MAC PDUs 11-15, which are depicted in a second row of figure 1.
- the first MAC SDU #1 is fragmented into two MAC PDUs 11, 12 as indicated by arrows between the first and the second row.
- the second MAC SDU #2 is fragmented into three MAC PDUs 13-15, which is equally indicated by arrows.
- the number of fragments into which the MAC SDUs are fragmented depends on the size of the respective MAC SDU and on the size of the available MAC PDUs. In case of good conditions, a modulation is selected that results in larger MAC PDUs and that thus requires less fragments than a modulation employed for bad conditions.
- Each of the MAC PDUs 11-15 comprises a subheader with five fields containing fragmentation information.
- the first field in each subheader is a TSN field of 7 bits, which is employed for identifying the respective MAC PDU.
- the second field is an FC field of 2 bits indicating for the current transmission the position of the respective PDU among the PDUs comprising the fragments of a single MAC SDU.
- the third field is an FC field of 2 bits indicating the position of the PDU containing the same data as the PDU in a first transmission.
- the fourth field is an FSN field of 5 bits containing a fragmentation sequence number for the respective PDU for the current transmission.
- the fifth field finally, is an FSN 1 field of 5 bits containing a fragmentation sequence number for the PDU containing the same data as the PDU in a first transmission.
- the values for the fields for the current transmission are selected as specified in the above mentioned standard 802.16.
- the first MAC PDU 11 for the first MAC SDU #1 is assigned a TSN of OxFl, and an FC of 10, since this MAC PDU 11 is the first fragment of the first MAC SDU #1.
- the second MAC PDU 12 for the first MAC SDU #1 is assigned a TSN of 0xF2, and an FC of 01, since this MAC PDU 12 is the last fragment of the first MAC SDU #1.
- the first MAC PDU 13 for the second MAC SDU #2 is assigned a TSN of 0xF3 , and an FC of 10, since this MAC PDU 13 is the first fragment of the second MAC SDU #2.
- the second MAC PDU 14 for the second MAC SDU #2 is assigned a TSN of 0xF4, and an FC of 11, since this MAC PDU 14 is a middle fragment of the second MAC SDU #2.
- the third MAC PDU 15 of the second MAC SDU #2 is assigned a TSN of 0xF5, and an FC of 01, since this MAC PDU 15 is the last fragment of the second MAC SDU #2.
- the respective value in the FC fields is identical to the respective value in the FC fields for each of the MAC PDUs 11-15, since the transmission of the MAC PDUs 11-15 in the second row of figure 1 constitutes at the same time the first transmission. For the same reason, the respective value in the FSN' fields is identical for each of the MAC PDUs 11-15 to the respective value in the FSN fields .
- the assembled MAC PDUs 11-15 are transmitted by the base station via the air interface to the subscriber station.
- the second MAC PDU 12 of the first MAC SDU #1 i.e. fragment 0xF2
- the lost fragment 12 thus has to be retransmitted.
- MAC PDU 12 of the second row is crossed out in order to indicate the loss during the first transmission.
- a transmission unit When a transmission unit is retransmitted, a copy of the original fragmentation control information and of the original fragmentation number is transmitted along with the transmission unit itself.
- the transmission unit that is to be retransmitted is treated like a new MAC SDU called retransmission SDU and is inserted at an appropriate position into the queue of MAC SDUs that are to be transmitted.
- the retransmission SDU undergoes the standard fragmentation process if necessary and obeys the same rules for setting the FC and FSN field values as an SDU which is transmitted for the first time.
- the applied modulation is not changed between the first transmission and the retransmission and the transmission capacity on the air interface stays the same. Therefore, the retransmission can be carried out without refragmentation.
- the MAC PDU 12 with the TSN value of 0xF2 is transmitted again as a single fragment 21, which fragment 21 is depicted in a third row of figure 1.
- the relation of this fragment 21 to the second MAC PDU 12 of the first MAC SDU #1 is indicated in figure 1 by arrows.
- the values in some of the fields in the subheader of the fragment 21 are changed for retransmission, however, in order to enable the subscriber station to make use of the received, retransmitted fragment 21.
- the TSN field in the subheader of the fragment 21 is provided with the same value 0xF2 as before, since this field identifies the lost MAC PDU 12. Also the fields FC and FSN' contain the same values as before, these field containing the information about the lost transmission. The three fields TSN, FC and FSN 1 enable the subscriber station to relate the retransmitted fragment 21 to the lost MAC PDU 12.
- FC field in contrast, is changed to 00, since the retransmitted PDU 12 is not fragmented further, fragment 21 thus constituting the only fragment.
- FSN field is incremented according to the conventional rules to 0x09, the last transmitted MAC PDU 15 of the first transmission having been assigned the value 0x08.
- Figure 2 illustrates the retransmission for a different situation.
- the retransmission is based on the same embodiment of the method according to the invention as in figure 1.
- two MAC SDUs #1 and #2 are to be transmitted by a base station via the air interface to a subscriber station.
- the first fragmentation of the MAC SDUs into MAC PDUs 11-15 corresponds exactly to the first fragmentation in the example of figure 1.
- the second MAC PDU 12 of the first MAC SDU #1 is lost during transmission, which is reported to the network by an ARQ feedback message of the subscriber substation.
- the employed modulation is changed after the first transmission to be more robust.
- the content of the second MAC PDU 12 of the first MAC SDU #1 can no longer be transmitted in a single PDU. Therefore, the second MAC PDU 12 has to be rearranged for retransmission.
- the MAC PDU 12 with the TSN value 0xF2 is refragmented for retransmission into three new fragments 22-24, which are depicted in the third row of figure 2. Arrows relate the new fragments 22-24 to the lost MAC PDU 12 of the second row.
- the respective TSN field of the three fragments 22-24 contains again the same value 0xF2, which identifies the lost MAC PDU 12 that has to be retransmitted. Also the fields FC and FSN' contain the same values as before, since these fields contain further information about the lost MAC PDU 12.
- the FC and FSN fields in the retransmitted fragments are set according to the normal rules. Therefore, the first fragment 22 is provided with a value of 10, the second fragment 23 with a value of 11 and the third fragment 24 with a value of 01 for the respective FC field. Further, the first fragment 22 is provided with a value of 0x09, the second fragment 23 with a value of OxOA and the third fragment 24 with a value of OxOB for the respective FSN field.
- the refragmentation mechanism of the invention thus makes it possible to rebuild and reorder fragments in retransmission.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/494,582 US20050008035A1 (en) | 2001-11-12 | 2001-11-12 | Method and device for retransmission of transmitted units |
PCT/EP2001/013063 WO2003043259A1 (en) | 2001-11-12 | 2001-11-12 | Method and device for retransmission of transmitted units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2001/013063 WO2003043259A1 (en) | 2001-11-12 | 2001-11-12 | Method and device for retransmission of transmitted units |
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WO2003043259A1 true WO2003043259A1 (en) | 2003-05-22 |
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PCT/EP2001/013063 WO2003043259A1 (en) | 2001-11-12 | 2001-11-12 | Method and device for retransmission of transmitted units |
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US (1) | US20050008035A1 (en) |
WO (1) | WO2003043259A1 (en) |
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EP1650880A1 (en) * | 2003-07-08 | 2006-04-26 | Lenovo (Beijing) Limited | A method for improving channel transmission efficiency in wireless network |
WO2007078156A2 (en) | 2006-01-05 | 2007-07-12 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
JP2008053854A (en) * | 2006-08-22 | 2008-03-06 | Fujitsu Ltd | Data retransmission method, communication device and computer program |
WO2008137962A2 (en) * | 2007-05-07 | 2008-11-13 | Qualcomm Incorporated | Re-using sequence numbers for wireless communication using multiple protocols |
EP2050233A1 (en) * | 2006-08-07 | 2009-04-22 | Intel Corporation | Two-pronged receive fragment processing in a wireless network |
JP2009517930A (en) * | 2005-12-02 | 2009-04-30 | 華為技術有限公司 | Data retransmission method, data transmission apparatus, and data transmission system |
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WO2010036154A1 (en) * | 2008-09-23 | 2010-04-01 | Telefonaktiebolaget L M Ericsson (Publ) | Rlc segmentation for carrier aggregation |
US7826855B2 (en) | 2006-01-05 | 2010-11-02 | Lg Electronics, Inc. | Data transmission method and data retransmission method |
US7904055B2 (en) | 2005-08-23 | 2011-03-08 | Lg Electronics Inc. | Communicating message in mobile communication system |
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JP7027690B2 (en) * | 2017-03-16 | 2022-03-02 | 日本電気株式会社 | Information processing equipment, communication systems, communication methods and programs |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999012303A1 (en) * | 1997-08-29 | 1999-03-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for block arq with reselection of fec coding and/or modulation |
WO1999063703A2 (en) * | 1998-06-03 | 1999-12-09 | Nokia Networks Oy | Data transmission methods in a telecommunication system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0677963A (en) * | 1992-07-07 | 1994-03-18 | Hitachi Ltd | Communication system and terminal equipment |
US5799012A (en) * | 1995-08-11 | 1998-08-25 | Motorola, Inc. | System controlled asymmetrical automatic repeat request protocol method |
TW313734B (en) * | 1996-01-05 | 1997-08-21 | Motorola Inc | System controlled asymmetrical automatic repeat request protocol method |
US7583623B2 (en) * | 2001-03-02 | 2009-09-01 | Ofer Zimmerman | Method and system for packing management messages in a communication system |
US7542482B2 (en) * | 2001-08-16 | 2009-06-02 | Qualcomm Incorporated | Method and apparatus for message segmentation in a wireless communication system |
US7161909B2 (en) * | 2004-04-23 | 2007-01-09 | Samsung Electronics Co., Ltd. | Method and system for acknowledging the receipt of a transmitted data stream in a wireless communication system |
-
2001
- 2001-11-12 US US10/494,582 patent/US20050008035A1/en not_active Abandoned
- 2001-11-12 WO PCT/EP2001/013063 patent/WO2003043259A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999012303A1 (en) * | 1997-08-29 | 1999-03-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for block arq with reselection of fec coding and/or modulation |
WO1999063703A2 (en) * | 1998-06-03 | 1999-12-09 | Nokia Networks Oy | Data transmission methods in a telecommunication system |
Non-Patent Citations (1)
Title |
---|
CARL EKLUND ET AL: "IEEE Standard 802.16 : A technical overview of the wireless MANtm air interface for broadband wireless access.", IEEE COMMUNICATIONS MAGAZINE JUNE 2002, vol. 40, no. 6, June 2002 (2002-06-01), pages 98 - 107, XP002902551 * |
Cited By (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1650880A1 (en) * | 2003-07-08 | 2006-04-26 | Lenovo (Beijing) Limited | A method for improving channel transmission efficiency in wireless network |
EP1650880A4 (en) * | 2003-07-08 | 2008-04-23 | Lenovo Beijing Ltd | A method for improving channel transmission efficiency in wireless network |
US7904055B2 (en) | 2005-08-23 | 2011-03-08 | Lg Electronics Inc. | Communicating message in mobile communication system |
US10091686B2 (en) | 2005-09-15 | 2018-10-02 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving status report comprising received status of packet data in a mobile communication system |
EP1764942B1 (en) * | 2005-09-15 | 2019-11-06 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving status report comprising received status of packet data in a mobile communication system |
US11082885B2 (en) | 2005-09-15 | 2021-08-03 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving status report comprising received status of packet data in a mobile communication system |
US10595224B2 (en) | 2005-09-15 | 2020-03-17 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving status report comprising received status of packet data in a mobile communication system |
JP2009517930A (en) * | 2005-12-02 | 2009-04-30 | 華為技術有限公司 | Data retransmission method, data transmission apparatus, and data transmission system |
EP1980062A4 (en) * | 2006-01-05 | 2011-03-30 | Lg Electronics Inc | Transmitting data in a mobile communication system |
US8867449B2 (en) | 2006-01-05 | 2014-10-21 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
EP1980062A2 (en) * | 2006-01-05 | 2008-10-15 | LG Electronics Inc. | Transmitting data in a mobile communication system |
WO2007078156A3 (en) * | 2006-01-05 | 2008-09-25 | Lg Electronics Inc | Transmitting data in a mobile communication system |
US9036596B2 (en) | 2006-01-05 | 2015-05-19 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
US9955507B2 (en) | 2006-01-05 | 2018-04-24 | Lg Electronics Inc. | Maintaining communication between mobile terminal and network in mobile communication system |
AU2007203852B2 (en) * | 2006-01-05 | 2010-08-26 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
US7826855B2 (en) | 2006-01-05 | 2010-11-02 | Lg Electronics, Inc. | Data transmission method and data retransmission method |
US7869396B2 (en) | 2006-01-05 | 2011-01-11 | Lg Electronics, Inc. | Data transmission method and data re-transmission method |
US9456455B2 (en) | 2006-01-05 | 2016-09-27 | Lg Electronics Inc. | Method of transmitting feedback information in a wireless communication system |
US9253801B2 (en) | 2006-01-05 | 2016-02-02 | Lg Electronics Inc. | Maintaining communication between mobile terminal and network in mobile communication system |
CN105515736A (en) * | 2006-01-05 | 2016-04-20 | Lg电子株式会社 | Transmitting data in mobile communication system |
JP4806030B2 (en) * | 2006-01-05 | 2011-11-02 | エルジー エレクトロニクス インコーポレイティド | Method for transferring signals in a mobile communication system |
US9397791B2 (en) | 2006-01-05 | 2016-07-19 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
US8428086B2 (en) | 2006-01-05 | 2013-04-23 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
WO2007078156A2 (en) | 2006-01-05 | 2007-07-12 | Lg Electronics Inc. | Transmitting data in a mobile communication system |
USRE43949E1 (en) | 2006-01-05 | 2013-01-29 | Lg Electronics Inc. | Allocating radio resources in mobile communications system |
US9462576B2 (en) | 2006-02-07 | 2016-10-04 | Lg Electronics Inc. | Method for transmitting response information in mobile communications system |
US8493854B2 (en) | 2006-02-07 | 2013-07-23 | Lg Electronics Inc. | Method for avoiding collision using identifier in mobile network |
US9706580B2 (en) | 2006-02-07 | 2017-07-11 | Lg Electronics Inc. | Method for transmitting response information in mobile communications system |
US10045381B2 (en) | 2006-02-07 | 2018-08-07 | Lg Electronics Inc. | Method for transmitting response information in mobile communications system |
US8971288B2 (en) | 2006-03-22 | 2015-03-03 | Lg Electronics Inc. | Method of supporting handover in a wireless communication system |
US8189537B2 (en) | 2006-06-21 | 2012-05-29 | Lg Electronics Inc. | Method for reconfiguring radio link in wireless communication system |
US9220093B2 (en) | 2006-06-21 | 2015-12-22 | Lg Electronics Inc. | Method of supporting data retransmission in a mobile communication system |
EP2050233A4 (en) * | 2006-08-07 | 2013-03-20 | Intel Corp | Two-pronged receive fragment processing in a wireless network |
EP2050233A1 (en) * | 2006-08-07 | 2009-04-22 | Intel Corporation | Two-pronged receive fragment processing in a wireless network |
JP2008053854A (en) * | 2006-08-22 | 2008-03-06 | Fujitsu Ltd | Data retransmission method, communication device and computer program |
US8358669B2 (en) | 2007-05-01 | 2013-01-22 | Qualcomm Incorporated | Ciphering sequence number for an adjacent layer protocol in data packet communications |
US8331399B2 (en) | 2007-05-07 | 2012-12-11 | Qualcomm Incorporated | Re-using sequence number by multiple protocols for wireless communication |
WO2008137962A2 (en) * | 2007-05-07 | 2008-11-13 | Qualcomm Incorporated | Re-using sequence numbers for wireless communication using multiple protocols |
WO2008137962A3 (en) * | 2007-05-07 | 2008-12-24 | Qualcomm Inc | Re-using sequence numbers for wireless communication using multiple protocols |
JP2010527544A (en) * | 2007-05-07 | 2010-08-12 | クゥアルコム・インコーポレイテッド | Reusing sequence numbers by multiple protocols for wireless communication |
WO2010036154A1 (en) * | 2008-09-23 | 2010-04-01 | Telefonaktiebolaget L M Ericsson (Publ) | Rlc segmentation for carrier aggregation |
EP2425573A4 (en) * | 2009-04-28 | 2013-01-23 | Intel Corp | Method and apparatus for mac message reliability |
EP2425573A2 (en) * | 2009-04-28 | 2012-03-07 | Intel Corporation | Method and apparatus for mac message reliability |
US8755408B2 (en) | 2009-04-28 | 2014-06-17 | Intel Corporation | Method and apparatus for MAC message reliability |
JP2010022049A (en) * | 2009-10-19 | 2010-01-28 | Fujitsu Ltd | Retransmission method for data, and communication device |
JP2010022050A (en) * | 2009-10-19 | 2010-01-28 | Fujitsu Ltd | Retransmission method for data, and communication device |
JP2011182465A (en) * | 2011-06-07 | 2011-09-15 | Fujitsu Ltd | Data retransmission method, and communication device |
GB2497519A (en) * | 2011-12-08 | 2013-06-19 | Renesas Mobile Corp | Controlling data transmission in a fragmentation transmission mode |
US8718083B2 (en) | 2011-12-08 | 2014-05-06 | Broadcom Corporation | Mechanism for controlling data transmission in fragmentation transmission mode |
US10171206B2 (en) | 2012-12-20 | 2019-01-01 | Lantiq Israel Ltd. | Methods and apparatuses for reframing and retransmission of datagram segments |
JP2016507943A (en) * | 2012-12-20 | 2016-03-10 | ランティック イスラエル リミテッド | Method and apparatus for reassembling and retransmitting datagram segments |
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